Don't move the books on the shelf. ________ them where they are.

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The fire spread through the hotel very quickly but everyone ________ get out.

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—Why! I couldn't get you on the telephone this morning.

—We ________ tennis in the yard when you phoned.

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I'll get my friends there ________ me a good hotel.

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---Mum, I think I'm ________ to get back to school.

---Not really, my dear. You'd better stay at home for another day or two.

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—Have you seen ________ pen? I left it here this morning.

—Is it ________ black one? I saw it somewhere.

[　　]

—Could I borrow your dictionary?

—Yes，of course you ________.

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Sir, you ________ be sitting in this waiting room. It is for women and children only.

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She devotes most of her spare time ________ books and she really knows a lot.

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We have ________ work to do today．I'm afraid we can't finish all．Shall we put something ________ till tomorrow?

[　　]

A．a mass of; more important

B．masses of; less important

C．mass of; little important

D．masses of; much important